I have found a solution!
1.Dowload Equalizer APO here: https://sourceforge.net/projects/equalizerapo/files/0.9.2/EqualizerAPO64-0.9.2.exe/download?use_mirror=netix&download=&failedmirror=kent.dl.sourceforge.net
2.Install
3.In the installation folder you will find a program called "Configurator". Open it
You will see two tabs. Playback devices and Capture devices. Find your headset in the capture tab and check the little box then press Ok. It will ask you to restart and do it.
4.After restarting go to the Equalizer directory again and in the file "config" you will find a text file called "config". Open it and in this file you can change the level of the devices you ticked in the configurator program.
So for me I got a separate mic and in windows "Sound" its labeled as Mikrofon. Simply write that in the config file and then choose your settings as I did here: http://imgur.com/HZZGrdk Play around a bit til you find a perfect level. If you experience your headset volume to be low or too high, you can also do that in here IF you ticked it in "Playback devices" in the configurator.
Thats it.
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